In recent years, although our country in the production of galvanized sheet, product quality, process technology and equipment level has great improvement, but there are still four sorts of problems: 1, the equipment level difference is bigger, can stripper unit more; 2, excess production capacity, the downstream demand, galvanized sheet with the enterprise overall capacity utilization is insufficient, high configuration unit waste is serious; 3, private enterprises are not in accordance with the standard production, coating thickness on the low side, cause the waste of resources. Environmental protection consciousness weak, exist enterprise environmental management is not standard; 4, for high quality car plate, functional appliance plate and high corrosion resistant steel building coatings also rely on imports, domestic high-end brands.